Effects of light-emitting diode treatments on Brevicoryne brassicae performance mediated by secondary metabolites in Brussels sprouts
Effects of light-emitting diode treatments on Brevicoryne brassicae performance mediated by secondary metabolites in Brussels sprouts
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DOI：
10.1007/s41348-016-0029-9
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发表时间：
2016-12-01
影响因子：
2
通讯作者：
Poehling, Hans-Michael
中科院分区：
文献类型：
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作者：
Acharya, Jeewan;Rechner, Ole;Poehling, Hans-Michael
虽然短波长光，特别是紫外线辐射可以诱导植物对草食性昆虫的抗性，但诱导抗性的最佳波长，光强度（光子通量率）和光照时间表尚未确定。发光二极管（LED）照明使研究人员能够对昆虫和植物进行窄带光处理。在这项研究中，我们评估了如何代谢为基础的防御反应，在布鲁塞尔萌芽植物（甘蓝变种。在本发明的实施方案中，本发明的组合物（例如，gemmifera）对甘蓝蚜虫Brevicoryne brassicae（半翅目：蚜虫科）的杀虫效果受到以下LED产生的光的波长的影响：300 nm（UV-B）、365 nm（UV-A）、470 nm（蓝光）和660 nm（红光）。环境温室光与来自钠蒸气灯的光补充作为对照处理。结果显示B显著降低。与蓝光处理相比，UV-A处理中的甘蓝表现; UV-A处理中的减少伴随着硫代葡萄糖苷浓度的显著增加。UV-B处理诱导了植物类黄酮含量的显著变化，但对B没有影响。Brassicae性能
Although short-wavelength light and especially UV radiation can induce resistance in plants against herbivorous insects, the optimal wavelengths, light intensities (photon flux rates), and illumination schedules for inducing resistance have not been previously determined. Light-emitting diode (LED) illumination enables researchers to subject insects and plants to narrow-banded light treatments. In this study, we assessed how the metabolite-based defense response in Brussels sprout plants (Brassica oleracea var. gemmifera) against the cabbage aphid, Brevicoryne brassicae (Hemiptera: Aphididae), was affected by the following LED-generated wavelengths of light: 300 nm (UV-B), 365 nm (UV-A), 470 nm (blue light), and 660 nm (red light). Ambient greenhouse light supplemented with light from sodium vapor lamps served as the control treatment. The results showed a significant reduction in B. brassicae performance in the UV-A treatment compared to the blue light treatment; the reduction in the UV-A treatment was accompanied by a significant increase in glucosinolate concentrations. The UV-B treatment induced significant changes in plant flavonoid concentrations but did not affect B. brassicae performance.